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{"id":1528269827,"title":"Earthworks 521 ZDT Single-Channel Mic Preamplifier for 500 Series Racks (1 RU Space)","handle":"earthworks-521-zdt-preamps-series-single-channel-preamplifier-1-rack-space-e521zdt","description":"\u003cdiv class='\"content\"'\u003e\n\u003cdiv class='\"productDescriptionWrapper\"'\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eBreathe New Life Into Your Mix\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class='\"productDescriptionWrapper\"'\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class='\"productDescriptionWrapper\"'\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class='\"productDescriptionWrapper\"'\u003e\n\u003cp class=\"ov-desc\"\u003eBased on the ZDT Preamp technology designed by David Blackmer, the 1 RU space \u003cstrong\u003e521 ZDT Single-Channel Mic Preamplifier\u003c\/strong\u003e from \u003cstrong\u003eEarthworks \u003c\/strong\u003ebrings the exacting standards of the Zero Distortion Technology preamplifiers to the convenient 500 series format.\u003cbr\u003e\u003cbr\u003e The solid-state 521 ZDT Preamplifier features switchable phantom power, polarity invert, and peak amplitude clip detection. The transformerless output stage of the 521 ZDT preamplifier can easily drive long cable runs without loss of quality, making it suitable for remote recordings. Transparent gain is switchable from 5 to 60 dB in 5 dB steps.\u003cbr\u003e\u003cbr\u003e The Earthworks microphone preamplifier topology provides strong common mode rejection, a high overload margin, and a low noise floor, combined with the wide bandwidth of the ZDT preamplifiers (1 Hz to 200 kHz +0.5 dB), and distortion of less than one part per million (0.0001%). This level of performance is maintained over an extensive range of impedances applied to the input, making the 521 ZDT preamplifier suitable for practically any microphone—ribbon, dynamic, or condenser.\u003c\/p\u003e\n\u003cdiv class=\"sectionHeaders js-hiddenFeatures\" data-selenium=\"sectionHeaders\"\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eClean, uncolored 500 series preamplifier for standard 500 series racks (required; sold separately)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eZero distortion, less than 1 ppm (\u0026gt;0.0001%)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eSolid state, transformerless\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eSwitchable 48V phantom power\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003ePolarity invert switch\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003ePeak amplitude clip detection\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eTransparent gain switchable from 5 to 60 dB in 5 dB steps\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eHigh output level of +30 dBu\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eFully differential (balanced) from input to output (i.e., no internal conversion to single-ended)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eAll discrete components; Class A amplification (no ICs and electrolytic capacitors in signal path)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eGreater transparency with minimum signal path and features\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eLow noise floor\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eWide bandwidth\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eSuitable for most ribbon, dynamic, or condenser microphones\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch5\u003eFEATURES\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePreamplifier Type: Solid state\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eNumber of Channels 1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eFrequency Response 2 Hz to 100 kHz ± 0.1 dB1 Hz to 200 kHz ± 0.5 dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eImpulse Response 1.4 µs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDistortion XLR Out: less than 1 ppm (0.0001%)1\/4' Out: 0.001%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eInput Noise 1.6 nV\/Hz½ at 20 dB gain0.6 nV\/Hz½ at 60 dB gain\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eEIN -132 dBV at 20 dB gain-143 dBV at 60 dB gain\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSlew Rate 22 V\/µs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eOutput DC Offset: ±1 mV typical, servo balanced\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eInput \/ Output Connectors 500 series EDAC Edge connector\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eInput Impedance XLR: 10 kΩ phantom on100 kΩ phantom off\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eFront Panel Balanced Out: 1\/4' TRS XLR female, balanced, transformerless (variable)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDimensions One 500 series rack space: 1.50 x 5.25 x 6.00' (38.10 x 133.35 x 152.40 mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.5;\"\u003eMPN: 521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.5;\"\u003eUPC: 827517317090\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class='\"bucket\"'\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003cdiv id='\"technicalProductFeatures\"'\u003e\u003c\/div\u003e\n\u003c\/div\u003e","published_at":"2015-07-09T06:06:00-07:00","created_at":"2015-07-09T06:06:05-07:00","vendor":"Earthworks","type":"Pedals \u0026 Effects","tags":["827517317090","cf-type-pedals-\u0026-effects","cf-vendor-earthworks","channel","earthworks 521zdt preamps","hardware","preamplifier","processing","rack","reverbsync-force:on","reverbsync-upc:827517317090","series","signal","single","space"],"price":99900,"price_min":99900,"price_max":99900,"available":true,"price_varies":false,"compare_at_price":139900,"compare_at_price_min":139900,"compare_at_price_max":139900,"compare_at_price_varies":false,"variants":[{"id":4571796355,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"E521ZDT","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Earthworks 521 ZDT Single-Channel Mic Preamplifier for 500 Series Racks (1 RU Space)","public_title":null,"options":["Default Title"],"price":99900,"weight":4536,"compare_at_price":139900,"inventory_quantity":11,"inventory_management":null,"inventory_policy":"deny","barcode":"827517317090","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/0879\/4068\/products\/main-750x750_3a3a3550-3b52-4546-b818-f15d7a059cb4.jpeg?v=1436447165","\/\/cdn.shopify.com\/s\/files\/1\/0879\/4068\/products\/2-750x750_bea25a51-d887-4b01-b9fd-215e85108764.jpeg?v=1436787521","\/\/cdn.shopify.com\/s\/files\/1\/0879\/4068\/products\/3-750x750_3f2c4555-a654-481b-bbad-b5791d7f5148.jpeg?v=1436787530","\/\/cdn.shopify.com\/s\/files\/1\/0879\/4068\/products\/main-750x750_b605b16d-0d75-46a8-a23e-27395fba5ec7.jpeg?v=1436787542"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4068\/products\/main-750x750_3a3a3550-3b52-4546-b818-f15d7a059cb4.jpeg?v=1436447165","options":["Title"],"media":[{"alt":"Earthworks 521 | ZDT Preamps Series Single Channel Preamplifier 1 Rack 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class='\"content\"'\u003e\n\u003cdiv class='\"productDescriptionWrapper\"'\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eBreathe New Life Into Your Mix\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class='\"productDescriptionWrapper\"'\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class='\"productDescriptionWrapper\"'\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class='\"productDescriptionWrapper\"'\u003e\n\u003cp class=\"ov-desc\"\u003eBased on the ZDT Preamp technology designed by David Blackmer, the 1 RU space \u003cstrong\u003e521 ZDT Single-Channel Mic Preamplifier\u003c\/strong\u003e from \u003cstrong\u003eEarthworks \u003c\/strong\u003ebrings the exacting standards of the Zero Distortion Technology preamplifiers to the convenient 500 series format.\u003cbr\u003e\u003cbr\u003e The solid-state 521 ZDT Preamplifier features switchable phantom power, polarity invert, and peak amplitude clip detection. The transformerless output stage of the 521 ZDT preamplifier can easily drive long cable runs without loss of quality, making it suitable for remote recordings. Transparent gain is switchable from 5 to 60 dB in 5 dB steps.\u003cbr\u003e\u003cbr\u003e The Earthworks microphone preamplifier topology provides strong common mode rejection, a high overload margin, and a low noise floor, combined with the wide bandwidth of the ZDT preamplifiers (1 Hz to 200 kHz +0.5 dB), and distortion of less than one part per million (0.0001%). This level of performance is maintained over an extensive range of impedances applied to the input, making the 521 ZDT preamplifier suitable for practically any microphone—ribbon, dynamic, or condenser.\u003c\/p\u003e\n\u003cdiv class=\"sectionHeaders js-hiddenFeatures\" data-selenium=\"sectionHeaders\"\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eClean, uncolored 500 series preamplifier for standard 500 series racks (required; sold separately)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eZero distortion, less than 1 ppm (\u0026gt;0.0001%)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eSolid state, transformerless\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eSwitchable 48V phantom power\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003ePolarity invert switch\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003ePeak amplitude clip detection\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eTransparent gain switchable from 5 to 60 dB in 5 dB steps\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eHigh output level of +30 dBu\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eFully differential (balanced) from input to output (i.e., no internal conversion to single-ended)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eAll discrete components; Class A amplification (no ICs and electrolytic capacitors in signal path)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eGreater transparency with minimum signal path and features\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eLow noise floor\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eWide bandwidth\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl\u003e\n\u003cdd class=\"featuredd c28\"\u003eSuitable for most ribbon, dynamic, or condenser microphones\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch5\u003eFEATURES\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePreamplifier Type: Solid state\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eNumber of Channels 1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eFrequency Response 2 Hz to 100 kHz ± 0.1 dB1 Hz to 200 kHz ± 0.5 dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eImpulse Response 1.4 µs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDistortion XLR Out: less than 1 ppm (0.0001%)1\/4' Out: 0.001%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eInput Noise 1.6 nV\/Hz½ at 20 dB gain0.6 nV\/Hz½ at 60 dB gain\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eEIN -132 dBV at 20 dB gain-143 dBV at 60 dB gain\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSlew Rate 22 V\/µs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eOutput DC Offset: ±1 mV typical, servo balanced\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eInput \/ Output Connectors 500 series EDAC Edge connector\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eInput Impedance XLR: 10 kΩ phantom on100 kΩ phantom off\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eFront Panel Balanced Out: 1\/4' TRS XLR female, balanced, transformerless (variable)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDimensions One 500 series rack space: 1.50 x 5.25 x 6.00' (38.10 x 133.35 x 152.40 mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.5;\"\u003eMPN: 521\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.5;\"\u003eUPC: 827517317090\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class='\"bucket\"'\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003cdiv id='\"technicalProductFeatures\"'\u003e\u003c\/div\u003e\n\u003c\/div\u003e"}